240 S Westlake Ave
Multifamily Housing in California, CA · 240 South Westlake Avenue, Los Angeles · 90057
At a glance
240 S Westlake Ave is a 96,153-square-foot multifamily housing building at 240 South Westlake Avenue, Los Angeles in Los Angeles, California, built in 2009. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 24.2 kBtu/ft² and 155 tCO₂e of greenhouse-gas emissions. That score is higher than 20% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 68 (band C) |
| Site EUI | 24.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 155 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 682,880 kWh |
| Gross floor area | 96,153 sq ft |
| Source record | california:6318444:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 68 | +7 | 24.2 kBtu/ft² | 155 tCO₂e |
| 2023 | 61 | +5 | 24.7 kBtu/ft² | 169 tCO₂e |
| 2022 | 56 | -3 | 25.9 kBtu/ft² | 171 tCO₂e |
| 2021 | 59 | +3 | 24.9 kBtu/ft² | 145 tCO₂e |
| 2020 | 56 | -9 | 26.4 kBtu/ft² | 169 tCO₂e |
| 2019 | 65 | 24.7 kBtu/ft² | 167 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 240 South Westlake Avenue, Los Angeles
- City
- California
- State
- California
- ZIP
- 90057
- Coordinates
- 34.06356, -118.26978
Within ~1 km
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- The Collectivescore —
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- Miramar Towersscore 92
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See also: most efficient in California · biggest emitters
How does 240 S Westlake Ave compare with other multifamily housing buildings in California?
The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. 240 S Westlake Ave's ENERGY STAR score of 68 compares with an average of 82 across the 9,612 that report a score; it scores higher than 20% of them and lower than 79%. Its site EUI of 24.2 kBtu/ft² is about 30% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.6 kgCO₂e/ft² is about 23% below the group average of 2.1 kgCO₂e/ft².
At 96,153 sq ft, it is about 36% below the average floor area of 150,919 sq ft for those buildings. It was built in 2009, 21 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 240 S Westlake Ave's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 240 S Westlake Ave, covering report years 2019–2024. Its ENERGY STAR score went from 65 in 2019 to 68 in 2024 (+3 points). Site EUI moved from 24.7 kBtu/ft² (2019) to 24.2 kBtu/ft² (2024), a 2% decrease. Reported emissions went from 167 tCO₂e to 155 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 68 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 points below 75, the threshold for ENERGY STAR certification. In California, 65% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 240 S Westlake Ave's 24.2 kBtu/ft² across 96,153 sq ft works out to about 2.3 billion Btu (682 MWh-equivalent) in 2024. The disclosure also reports 682,880 kWh of electricity for the year.
Which law requires 240 S Westlake Ave to report its energy use?
240 S Westlake Ave reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:6318444:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More multifamily housing buildings in California
- 10850 Jamacha Blv· 96,140 sq ft · score 62 (C)
- 10640 Colima Rd, Whittier, Ca 90604, Usa· 96,124 sq ft · score 81 (B)
- 10441 Valencia Commons· 96,090 sq ft · score 76 (B)
- 1616 N Fuller Ave (Dbs 1620 N Fuller Ave )· 96,078 sq ft · score 94 (A)
- Covina Manor - Shapell Properties, Inc· 96,000 sq ft · score 92 (A)
- Sonoma Ranch· 96,000 sq ft · score 98 (A)
- Multifamily Housing buildings in California· 10,630 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 240 S Westlake Ave's energy grade?
240 S Westlake Ave scores 68 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 240 S Westlake Ave use?
Its 2024 site energy-use intensity was 24.2 kBtu/ft² across 96,153 sq ft, including 682,880 kWh of electricity.
What are 240 S Westlake Ave's carbon emissions?
240 S Westlake Ave reported 155 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2024.
Where is 240 S Westlake Ave?
240 S Westlake Ave is at 240 South Westlake Avenue, Los Angeles, in Los Angeles, California 90057. Its coordinates are 34.06356, -118.26978 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 240 S Westlake Ave and when was it built?
240 S Westlake Ave has 96,153 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as multifamily housing.
Is 240 S Westlake Ave covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “240 S Westlake Ave, Los Angeles, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/240-s-westlake-ave-5a8c7fd7 (data as of July 9, 2026).